cpu.h revision 1.28.2.3
1 /* $NetBSD: cpu.h,v 1.28.2.3 2004/09/21 13:24:20 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 36 * 37 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 75 * 76 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 77 */ 78 79 #ifndef _X68K_CPU_H_ 80 #define _X68K_CPU_H_ 81 82 /* 83 * Exported definitions unique to x68k/68k cpu support. 84 */ 85 86 #if defined(_KERNEL_OPT) 87 #include "opt_m680x0.h" 88 #include "opt_lockdebug.h" 89 #endif 90 91 /* 92 * Get common m68k CPU definitions. 93 */ 94 #include <m68k/cpu.h> 95 #define M68K_MMU_MOTOROLA 96 97 /* 98 * Get interrupt glue. 99 */ 100 #include <machine/intr.h> 101 102 #include <sys/sched.h> 103 struct cpu_info { 104 struct schedstate_percpu ci_schedstate; /* scheduler state */ 105 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 106 u_long ci_spin_locks; /* # of spin locks held */ 107 u_long ci_simple_locks; /* # of simple locks held */ 108 #endif 109 }; 110 111 #ifdef _KERNEL 112 extern struct cpu_info cpu_info_store; 113 114 #define curcpu() (&cpu_info_store) 115 116 /* 117 * definitions of cpu-dependent requirements 118 * referenced in generic code 119 */ 120 #define cpu_swapin(p) /* nothing */ 121 #define cpu_swapout(p) /* nothing */ 122 #define cpu_number() 0 123 124 void cpu_proc_fork(struct proc *, struct proc *); 125 126 /* 127 * Arguments to hardclock and gatherstats encapsulate the previous 128 * machine state in an opaque clockframe. One the x68k, we use 129 * what the hardware pushes on an interrupt (frame format 0). 130 */ 131 struct clockframe { 132 u_short sr; /* sr at time of interrupt */ 133 u_long pc; /* pc at time of interrupt */ 134 u_short vo; /* vector offset (4-word frame) */ 135 }; 136 137 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 138 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 139 #define CLKF_PC(framep) ((framep)->pc) 140 #if 0 141 /* We would like to do it this way... */ 142 #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) 143 #else 144 /* but until we start using PSL_M, we have to do this instead */ 145 #define CLKF_INTR(framep) (0) /* XXX */ 146 #endif 147 148 149 /* 150 * Preempt the current process if in interrupt from user mode, 151 * or after the current trap/syscall if in system mode. 152 */ 153 extern int want_resched; /* resched() was called */ 154 #define need_resched(ci) { want_resched++; aston(); } 155 156 /* 157 * Give a profiling tick to the current process when the user profiling 158 * buffer pages are invalid. On the x68k, request an ast to send us 159 * through trap, marking the proc as needing a profiling tick. 160 */ 161 #define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); } 162 163 /* 164 * Notify the current process (p) that it has a signal pending, 165 * process as soon as possible. 166 */ 167 #define signotify(p) aston() 168 169 extern int astpending; /* need to trap before returning to user mode */ 170 #define aston() (astpending++) 171 172 #endif /* _KERNEL */ 173 174 /* 175 * CTL_MACHDEP definitions. 176 */ 177 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 178 #define CPU_MAXID 2 /* number of valid machdep ids */ 179 180 #define CTL_MACHDEP_NAMES { \ 181 { 0, 0 }, \ 182 { "console_device", CTLTYPE_STRUCT }, \ 183 } 184 185 /* 186 * The rest of this should probably be moved to <machine/x68kcpu.h> 187 * although some of it could probably be put into generic 68k headers. 188 */ 189 190 #ifdef _KERNEL 191 extern int machineid; 192 extern char *intiolimit; 193 194 /* autoconf.c functions */ 195 void config_console __P((void)); 196 197 /* fpu.c functions */ 198 int fpu_probe __P((void)); 199 200 /* machdep.c functions */ 201 void dumpconf __P((void)); 202 void dumpsys __P((void)); 203 204 /* locore.s functions */ 205 struct pcb; 206 struct fpframe; 207 int suline __P((caddr_t, caddr_t)); 208 void savectx __P((struct pcb *)); 209 void switch_exit __P((struct lwp *)); 210 void switch_lwp_exit __P((struct lwp *)); 211 void proc_trampoline __P((void)); 212 void loadustp __P((int)); 213 void m68881_save __P((struct fpframe *)); 214 void m68881_restore __P((struct fpframe *)); 215 216 /* machdep.c functions */ 217 int badaddr __P((caddr_t)); 218 int badbaddr __P((caddr_t)); 219 220 /* sys_machdep.c functions */ 221 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 222 int dma_cachectl __P((caddr_t, int)); 223 224 /* vm_machdep.c functions */ 225 void physaccess __P((caddr_t, caddr_t, int, int)); 226 void physunaccess __P((caddr_t, int)); 227 int kvtop __P((caddr_t)); 228 229 #endif 230 231 /* physical memory sections */ 232 #define INTIOBASE (0x00C00000) 233 #define INTIOTOP (0x01000000) 234 235 /* 236 * Internal IO space: 237 * 238 * Ranges from 0xC00000 to 0x1000000 (IIOMAPSIZE). 239 * 240 * Internal IO space is mapped in the kernel from ``IODEVbase'' to 241 * ``intiolimit'' (defined in locore.s). Since it is always mapped, 242 * conversion between physical and kernel virtual addresses is easy. 243 */ 244 #define IIOPOFF(pa) ((int)(pa)-INTIOBASE) 245 #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 4mb */ 246 247 #endif /* _X68K_CPU_H_ */ 248
Indexes created Sat Oct 18 17:09:52 GMT 2025